CN215257676U - Double-output speed reducer with ratchet wheel backstop - Google Patents

Abstract

The utility model relates to a dual output speed reducer with ratchet backstop, the motor passes through the bolt and installs on the box, the external splines of motor output shaft and the input cover internal splines meshing of ratchet backstop integrative with the motor, input cover and thread bush pass through the internal splines meshing, the thread bush is connected with input gear, both ends support bearing fixes on box and case lid, the centre establishes friction disc and ratchet, the pawl fixes on the axle in the box, one, two and three axles have two sets respectively, distribute in ratchet backstop both sides, input gear on the ratchet backstop meshes with one of them a set of a gear of an axle, realize one-level speed reduction, a shaft gear meshes with another set of a shaft gear, a shaft gear meshes with respectively mate two shafts, two shaft gears mesh with respectively mate three shaft gear, design the chain guard guide groove on the box, reduce energy loss, the output efficiency is improved; the chain guide mechanism is designed on the outer side, so that the guide position is unchanged during chain transmission, and the chain is prevented from being damaged by chain clamping.

Description

Double-output speed reducer with ratchet wheel backstop

Technical Field

The utility model belongs to the speed reducer field especially relates to a dual output speed reducer with ratchet backstop.

Background

Along with the continuous development of modern mines, the underground mechanization degree of coal mines is higher and higher, auxiliary transportation equipment, particularly a monorail crane, is more and more widely used, and lifting beams with different tonnages are designed according to the requirements of materials with different weights; wherein 8T rank's application scope is widest, can transport stock, container, mine car and a lot of little material, and the most core part of lifting beam is the speed reducer, and current speed reducer takes off and land unstably, and the chain wearing and tearing are serious, and is inefficient, raise the cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a dual output speed reducer with ratchet backstop, the chain groove is led to the design protecting chain, and position precision is high when the sprocket drives chain drive, reduces the chain wearing and tearing, reduces energy loss, improves output efficiency, reduce cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a double-output speed reducer with a ratchet wheel backstop comprises the ratchet wheel backstop, a first shaft, a second shaft, a third shaft, a box cover, a box body, a motor, a shovel chain, a chain and a guide chain mechanism; the ratchet wheel backstop comprises an input gear, a friction plate, a ratchet wheel, a support bearing, a threaded sleeve, an input sleeve, a clamping key, a shifting fork and a pawl; one shaft comprises a first gear, a first gear shaft and a first supporting bearing, the second shaft comprises a second gear, a second gear shaft and a second supporting bearing, and the third shaft comprises a third gear, a driving chain wheel and a third supporting bearing

And a triaxial support bearing

(ii) a The chain guide mechanism comprises an ear plate, a bolt and a guide wheel; the motor is installed on the box body through a bolt, an external spline of a motor output shaft integrated with the motor is meshed with an internal spline of an input sleeve of the ratchet wheel backstop to transmit torque, the input sleeve key is matched with a key groove of a threaded sleeve, a supporting bearing and a ratchet wheel are installed on the outer side of the threaded sleeve, the excircle of the left part of the supporting bearing is matched with an inner hole of the ratchet wheel, the threaded sleeve is connected with the input gear through threads, the excircle of the input gear is matched with the inner hole of a friction plate, and the right side of the friction plate is attached to the ratchet wheel; input gearThe wheel key groove is matched with the friction plate convex key; the clamping key is arranged in the key groove of the threaded sleeve, and the shifting fork is provided with a surface matched with the clamping key, and the surface is attached to the side surface of the clamping key; two end support bearings are fixed on the box body and the box cover, the pawl is fixed on an inner shaft in the box body and limited by a clamp spring, and the pawl is attached to the ratchet wheel; two sets of first shafts are distributed on two sides of the ratchet wheel backstop, a first shaft gear shaft and a first shaft gear are in interference fit and key connection transmission, a shaft support bearing is mounted at two ends of the first shaft gear, an input gear on the ratchet wheel backstop is meshed with one shaft gear of the first shaft to realize first-stage speed reduction, and the first shaft gear is meshed with the other shaft gear to realize reverse output of two sides; two sets of secondary shafts are respectively corresponding to one set of primary shaft, a secondary gear shaft and a secondary gear are in transmission through interference and key connection, and two ends of the secondary gear shaft are provided with secondary shaft support bearings; the primary gear shaft is meshed with the respective paired secondary gears to output to realize secondary speed reduction; the three shafts are provided with two sets which respectively correspond to one set of two shafts, the two shaft gear shafts are meshed with the respective paired three shaft gears to output to realize three-stage speed reduction, the three shaft gears are connected with the driving chain wheel through splines, the three shafts are the driving chain wheel, the driving chain wheel is meshed with the chain to be matched for transmission, and the three shafts support the bearing

With three-axis support bearings

Are arranged at both sides of the chain;

the box body and the box cover are used for supporting bearings at two ends of each shaft and are used as supports of the whole set of speed reducing mechanism; shovel chain integration is on the box, and chain mechanism is led in box outlet design, and every chain mechanism of leading contains 2 guide pulleys, 2 bolts and 2 otic placodes, establishes the guide pulley in the middle of two otic placodes, through the bolt fastening on the box, the cross recess that two guide pulleys formed is as chain drive's guide slot, position when guaranteeing chain drive.

Compared with the prior art, the utility model discloses the beneficial effect who gains:

1. the box body is provided with the chain protection and guide groove, and the position precision is high when the chain wheel drives the chain to transmit, so that the energy loss is reduced, the output efficiency is improved, and the cost is reduced;

2. a chain guide mechanism is arranged on the outer side of the box body, and the guide position is unchanged when the chain is driven through two guide wheels, so that the chain is prevented from being damaged by chain clamping;

3. the input teeth, the input sleeve, the threaded sleeve and the pawl are adopted to realize hoisting and landing braking, so that the friction compaction is realized during hoisting, and the stable operation is ensured; when the speed reducer is landed, the ratchet wheel is clamped by the pawl, the friction is frequently opened and locked to realize slow landing, and when the landing is stopped, the pawl can ensure that the speed reducer is self-locked and does not fall.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the utility model;

FIG. 3 is a schematic view showing the connection relationship among a first shaft, a second shaft and a third shaft;

FIG. 4 is a schematic cross-sectional view showing a connection relationship among a first axis, a second axis and a third axis;

FIG. 5 is a schematic view of a partial structure of the backstop;

FIG. 6 is another schematic structural diagram of the check device;

FIG. 7 is a schematic view of an axial structure;

FIG. 8 is a schematic view of a two-axis structure;

FIG. 9 is a schematic view of a three-axis configuration;

FIG. 10 is a schematic view of a guide chain structure;

FIG. 11 is a schematic cross-sectional view of a chain guide structure.

1. A ratchet wheel backstop; 2. a shaft; 3. two axes; 4. three axes; 5. a box cover; 6. a box body; 7. a motor; 8. shoveling the chain; 9. a chain; 10. a chain guide mechanism; 101. an input gear; 102. a friction plate; 103. a ratchet wheel; 104. a support bearing; 105. a threaded sleeve; 106. an input sleeve; 107. a card key; 108. a shifting fork; 109. a pawl; 201. a shaft gear; 202. a shaft gear; 203. a shaft support bearing; 301. a two-axis gear; 302. a two-axis gear shaft; 303. two shafts support the bearing; 401. a three-axis gear; 402. a drive sprocket; 403. three-shaft support bearing

(ii) a 404, three-axis supportBearing assembly

(ii) a 1001. A guide wheel; 1002. a bolt; 1003. an ear plate.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-11, a dual-output speed reducer with a ratchet backstop comprises a ratchet backstop 1, a first shaft 2, a second shaft 3, a third shaft 4, a box cover 5, a box body 6, a motor 7, a shovel chain 8, a chain 9 and a chain guide mechanism 10; the ratchet backstop 1 comprises an input gear 101, a friction plate 102, a ratchet 103, a support bearing 104, a threaded sleeve 105, an input sleeve 106, a clamping key 107, a shifting fork 108 and a pawl 109; one shaft 2 comprises a first shaft gear 201, a first shaft gear 202 and a first shaft bearing 203, two shafts 3 comprise a second shaft gear 301, a second shaft gear 302 and a second shaft bearing 303, and three shafts 4 comprise a third shaft gear 401, a driving chain wheel 402 and a third shaft bearing

403 and triaxial support bearing

404; the chain guide mechanism 10 comprises an ear plate 1001, a bolt 1002 and a guide wheel 1003; the motor 7 is installed on the box body 6 through bolts, an external spline of a motor output shaft integrated with the motor is meshed with an internal spline of an input sleeve 106 of the ratchet backstop 1 to transmit torque, a key of the input sleeve 106 is matched with a key groove of a threaded sleeve 105, a support bearing 104 and a ratchet 103 are installed on the outer side of the threaded sleeve 105, the outer circle of the left part of the support bearing 104 is matched with an inner hole of the ratchet 103, the threaded sleeve 105 is connected with the input gear 101 through threads, the outer circle of the input gear 101 is matched with the inner hole of a friction plate 102, and the right side of the friction plate 102 is attached to the ratchet 103; the key groove of the input gear 101 is matched with the protruding key of the friction plate 102; the clamp key 107 is arranged in the key groove of the threaded sleeve 105, and the shifting fork 108 is provided with a surface matched with the clamp key 107, and the surface is attached to the side surface of the clamp key 107; two end support bearings are fixed on the box body 6 and the box cover 5, the pawl 109 is fixed on an inner shaft of the box body and limited by a clamp spring, and the pawl 109 is attached to the ratchet 103;two sets of first shafts 2 are distributed on two sides of the ratchet backstop 1, a first shaft gear shaft 202 and a first shaft gear 201 are in interference fit and key connection transmission, a shaft support bearing 203 is mounted at two ends, an input gear 101 on the ratchet backstop 1 is meshed with one set of first shaft gear 201 of the first shaft to realize first-stage speed reduction, and the first shaft gear 201 is meshed with the other set of first shaft gear to realize reverse output of two sides; two sets of the secondary shafts 3 are respectively corresponding to one set of the primary shafts 2, the secondary gear shaft 302 and the secondary gear 301 are in interference fit and key connection transmission, and two ends of the secondary gear shaft are provided with secondary shaft support bearings 303; the primary gear shaft 201 is meshed with the respective paired secondary gears 301 to output to realize secondary speed reduction; two sets of three shafts 4 are respectively corresponding to one set of two shafts 3, the two shaft gear shafts 302 are meshed with the respective paired three shaft gears 401 to output to realize three-stage speed reduction, the three shaft gears 401 are connected with the driving chain wheel 402 through splines, the three shaft shafts are the driving chain wheel, the driving chain wheel 402 is meshed with the chain 9 to be matched for transmission, and the three shaft supports a bearing

403 and triaxial bearing

404 are arranged at both sides of the chain 9; the hoisting and landing braking is realized through the input teeth, the input sleeve, the threaded sleeve and the pawl, the friction compaction is ensured during hoisting, and the stable operation is realized; when the speed reducer is landed, the ratchet wheel is clamped by the pawl, the friction is frequently opened and locked to realize slow landing, and when the landing is stopped, the pawl can ensure that the speed reducer is self-locked and does not fall.

The box body 6 and the box cover 5 are used for supporting bearings at two ends of each shaft and are used as supports of the whole set of speed reducing mechanism; the shovel chain 8 is integrated on the box body 6, chain guide mechanisms 10 are designed at a chain outlet of the box body 6, each chain guide mechanism comprises 2 guide wheels 1001, 2 bolts 1002 and 2 lug plates 1003, the guide wheels 1001 are arranged between the two lug plates 1003 and fixed on the box body through the bolts 1002, and cross grooves formed by the two guide wheels are used as guide grooves for transmission of the chain 9; the chain guide mechanism is designed on the outer side of the box body, and the guide position is unchanged when the chain is driven through the two guide wheels, so that the chain is prevented from being damaged by chain clamping; the chain guide groove is designed on the box body, the position precision is high when the chain wheel drives the chain to transmit, the energy loss is reduced, and the output efficiency is improved.

The above embodiments are preferred embodiments of the present invention, but the embodiments are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalent replacements and are within the scope of the present invention.

Claims (1)

1. A double-output speed reducer with a ratchet wheel backstop is characterized by comprising the ratchet wheel backstop (1), a first shaft (2), a second shaft (3), a third shaft (4), a box cover (5), a box body (6), a motor (7), a shovel chain (8), a chain (9) and a chain guide mechanism (10); the ratchet wheel backstop (1) comprises an input gear (101), a friction plate (102), a ratchet wheel (103), a support bearing (104), a threaded sleeve (105), an input sleeve (106), a clamping key (107), a shifting fork (108) and a pawl (109); one shaft (2) comprises a shaft gear (201), a shaft gear (202) and a supporting bearing (203), the second shaft (3) comprises a second shaft gear (301), a second shaft gear shaft (302) and a second supporting bearing (303), and the third shaft (4) comprises a third shaft gear (401), a driving chain wheel (402) and a third supporting bearing

(403) And a triaxial support bearing

(404) (ii) a The chain guide mechanism (10) comprises an ear plate (1003), a bolt (1002) and a guide wheel (1001); the motor (7) is installed on the box body (6) through a bolt, an external spline of a motor output shaft integrated with the motor (7) is meshed with an internal spline of an input sleeve (106) of the ratchet wheel backstop (1) to transmit torque, a key of the input sleeve (106) is matched with a key groove of a threaded sleeve (105), a support bearing (104) and a ratchet wheel (103) are installed on the outer side of the threaded sleeve (105), the outer circle of the left part of the support bearing (104) is matched with an inner hole of the ratchet wheel (103), and a threaded sleeve(s) (A, B, C and C)105) The outer circle of the input gear (101) is matched with an inner hole of a friction plate (102), and the right side of the friction plate (102) is attached to a ratchet wheel (103); the key groove of the input gear (101) is matched with the protruding key of the friction plate (102); the clamping key (107) is arranged in a key groove of the threaded sleeve (105), the shifting fork (108) is provided with a surface matched with the clamping key (107), the surface is attached to the side surface of the clamping key (107), supporting bearings (104) at two ends are fixed on the box body (6) and the box cover (5), the pawl (109) is fixed on an inner shaft of the box body and limited by a clamp spring, and the pawl (109) is attached to the ratchet wheel (103); two sets of shafts (2) are distributed on two sides of the ratchet wheel backstop (1), a shaft gear shaft (202) and a shaft gear (201) are in interference fit and key connection transmission, shaft support bearings (203) are mounted at two ends of the shaft support bearings, an input gear (101) on the ratchet wheel backstop (1) is meshed with one shaft gear (201) of one shaft to realize primary speed reduction, and the shaft gear (201) is meshed with the other shaft gear to realize reverse output of two sides; two shafts (3) are respectively corresponding to one shaft (2), a two-shaft gear shaft (302) and a two-shaft gear (301) are in interference fit and key connection transmission, and two ends of the two-shaft gear shaft are provided with two-shaft support bearings (303); the primary gear shaft (202) is meshed with the respective paired secondary gears (301) to output to realize secondary speed reduction; the three shafts (4) are provided with two sets and respectively correspond to one set of two shafts (3), the two shaft gear shafts (302) are meshed with the respective paired three shaft gears (401) to output to realize three-stage speed reduction, the three shaft gears (401) are connected with the driving chain wheel (402) through splines, the shafts of the three shafts (4) are the driving chain wheel, the driving chain wheel (402) is meshed with the chain (9) to be in matched transmission, and the three shafts support the bearing

(403) With three-axis support bearings

(404) Are arranged at both sides of the chain;

the box body (6) and the box cover (5) are used for supporting bearings at two ends of each shaft and used as supports of the whole set of speed reducing mechanism; shovel chain (8) are integrated on box (6), and box (6) outlet chain mouth design is led chain mechanism (10), and every is led chain mechanism and is contained 2 guide pulleys (1001), 2 bolt (1002) and 2 otic placodes (1003), establishes guide pulley (1001) in the middle of two otic placodes (1003), fixes on the box through bolt (1002), and the cross recess that two guide pulleys formed is as chain (9) driven guide slot, position when guaranteeing chain drive.

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